I'm using your membership 1 plugin(126.96.36.199).
But,When I update 188.8.131.52 from 184.108.40.206, All of my users saw "protected contents" message.
Maybe, Update program has something wrong.
So,I used Debug-mode.
This is the debug message.
[19-Oct-2015 17:12:30] loading level premium *<- this is my premium membership level I created.
[19-Oct-2015 17:12:30] Standard levels are loaded for current member.
[19-Oct-2015 17:12:30] Current member can not view current page
[19-Oct-2015 17:12:31] CRON: There are 1 expiring relationships
Do you have any idea?
I took a guess that my some membership DB-tables now have wrong data.
Maybe,220.127.116.11(old version) don't use those data,so works fine.
But 18.104.22.168 is using them. (ex wp_m_member_payments),
So All of my member are force to move visitor-level in spite of their real level(premium).